fix: digitalToCash少于两位小数时需加个0 (#26)

Author: urnotzane

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@mlz/doraemon",
-  "version": "0.9.1",
+  "version": "0.9.2",
   "description": "项目常用但lodash又没有的工具函数集合，哆啦A梦般方便实用",
   "main": "lib/index.js",
   "module": "es/index.js",

src/digitalToCash.ts

@@ -14,6 +14,8 @@ export const digitalToCash = (target:number):string => {
     // 保留两位小数
     decimal = temp.substring(decimalPoint).substr(0, 3);
     temp = temp.substring(0, decimalPoint);
+    // 如果小数点后只有一位数
+    decimal = decimal.length < 3 ? `${decimal}0` : decimal;
   }
   while(temp.length > 0) {
     // 第一次循环无需加,

test/digitalToCash.test.ts

@@ -13,13 +13,13 @@ describe('digitalToCash', () => {
   it('1000 => 1,000.00', () => {
     expect(digitalToCash(1000)).toBe('1,000.00');
   });
-  it('100000000 => 100,000,000.00', () => {
-    expect(digitalToCash(100000000)).toBe('100,000,000.00');
-  });
   it('-100000000 => -100,000,000.00', () => {
     expect(digitalToCash(-100000000)).toBe('-100,000,000.00');
   });
   it('-9999.999 => -9,999.99', () => {
     expect(digitalToCash(-9999.999)).toBe('-9,999.99');
   });
+  it('-9999.9 => -9,999.90', () => {
+    expect(digitalToCash(-9999.9)).toBe('-9,999.90');
+  });
 });